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Electromagnetic Field Theory

Electromagnetic Field Theory
In a dielectric material an applied field in x direction Ex = 5 v/m gives a polarization of px = 3/10π ux nc/m2. The susceptibility of the material is

 Infinity.
 4.32.
 Zero.
  2.16.

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Electromagnetic Field Theory
inductance (L2) in parallel without mutual coupling will be

 15 mH.
 5 mH.
 20 mH.
 10 mH.

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Electromagnetic Field Theory
A long straight wire carries a current I = 10A. At what distance is the magnetic field H = 1A/m?

 1.29 m.
 1.59 m.
 1.39 m.
 1.19 m.

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Electromagnetic Field Theory
XEROX machine is working on

 heating effect of current.
 peltier effect.
 electrostatic effect.
 magnetic effect.

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Electromagnetic Field Theory
A medium is said to be isotropic when

 ∈ is zero.
 ∈ = μσ.
 ∈ is a scalar constant.
 ∈ = μ.

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Electromagnetic Field Theory
Materials subjected to rapid reversals of magnetism should have

 high permeability.
 both a and b.
 low permeability.
 low hysteresis loss.

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MORE MCQ ON Electromagnetic Field Theory

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